Ashton-under-Lyne - Live Sewage

Polluted by sewage 1,237 hours in 2026 , monitoring offline 1,717 hours , potential overflows 7 hours so far..

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Ashton-under-Lyne so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

Totals for Ashton-under-Lyne in 2026

Sewage1,237 hours
Monitoring offline1,717 hours
Potential pollution7 hours
Storm overflows56

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Daily Data

Jan - 29 hours , 746 offline
Feb - 314 hours , 87 offline
Mar - 235 hours , 7 potential
Apr - 11 hours
May - 55 hours , 0 potential
Jun - 0 hours
Jul - 0 hours
Aug - 201 hours
Sept - 125 hours , 253 offline
Oct - 263 hours , 606 offline
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities DUKINFIELD WwTW River Tame 27 206h 58m 9 h
United Utilities ASHTON-UNDER-LYNE WwTW River Tame 24 204h 7m 1 h
United Utilities Clayton Bridge CSO River Medlock 34 103h 44m 3 h
United Utilities DUKINFIELD WwTW River Tame 28 95h 41m -
United Utilities Wharf Street CSO River Mersey 35 90h 16m -
United Utilities Turner Lane/Alexandra Road CSO River Tame 47 79h 4m 0 h
United Utilities Broomstair Road CSO River Tame 24 76h 23m -
United Utilities LOWER WHARF STREET CSO River Tame 46 61h 40m -
United Utilities Broadoak/Lyndhurst Avenue CSO Taunton 29 57h 43m -
United Utilities ASHTON-UNDER-LYNE WwTW River Tame 5 51h 13m -
United Utilities Pottinger Street/Oxford Street CSO River Tame 33 50h 2m 0 h
United Utilities 250 metres d/s Ashton Road (Bardsley PS) CSO River Medlock 6 41h 31m 829 h
United Utilities Chappell Road CSO Lumb Brook 29 37h 48m -
United Utilities Newmarket Road PS Taunton Brook, Medlock 23 27h 33m -
United Utilities Lower Wharf Street/Scotland Street CSO River Tame 20 25h 4m 861 h
United Utilities Edward Street (Dunkinfield) CSO River Tame Via Sws 19 14h -
United Utilities Coal Pit Lane CSO Kebbs Brook, Riv Darwen 9 7h 24m -
United Utilities Green Lane/Lyndhurst Avenue CSO Smallshaw Brook 4 2h 38m -
United Utilities Lumb Lane (Audenshaw) CSO and Detention Tank Carr Brook Via Sws 1 1h 17m -
United Utilities Gambrel Bank Road CSO Downshaw Brook 5 1h 14m -
United Utilities Medlock Sports Centre CSO Lumb Brook Via Surface Wtr Sew 2 1h 3m -
United Utilities Dukinfield Outfall Sewer CSO River Tame 2 0h 40m -
United Utilities Greenwood Avenue/Platt Avenue CSO Smallshaw Brook Via Sws 1 0h 30m -
United Utilities ASHTON OLD ROAD / MANSHAW STREET CSO Moss Brook 3 0h 16m 1 h
United Utilities Hathershaw Playing Field River Medlock 1 0h 4m -
United Utilities Argyll Street CSO Cock Brook 0 0h 17 h
United Utilities Gambrel Bank Road CSO Downshaw Brook 0 0h -
United Utilities Greenwood Avenue/Platt Avenue CSO Smallshaw Brook Via Sws 0 0h -
United Utilities Chappell Road CSO Lumb Brook 0 0h -
United Utilities Pottinger Street/Oxford Street CSO River Tame 0 0h -
United Utilities Hathershaw Playing Field River Medlock 0 0h -
United Utilities HUNTS BANK CSO River Irk 0 0h -
United Utilities DUKINFIELD WwTW River Tame 0 0h -
United Utilities ASHTON-UNDER-LYNE WwTW River Tame 0 0h -
United Utilities Lower Wharf Street/Scotland Street CSO River Tame 0 0h -
United Utilities Clayton Bridge CSO River Medlock 0 0h -
United Utilities Coal Pit Lane CSO Kebbs Brook, Riv Darwen 0 0h -
United Utilities ASHTON-UNDER-LYNE WwTW River Tame 0 0h -
United Utilities Broadoak/Lyndhurst Avenue CSO Taunton 0 0h -
United Utilities 250 metres d/s Ashton Road (Bardsley PS) CSO River Medlock 0 0h -
United Utilities Green Lane/Lyndhurst Avenue CSO Smallshaw Brook 0 0h -
United Utilities Newmarket Road PS Taunton Brook, Medlock 0 0h -
United Utilities Lumb Lane (Audenshaw) CSO and Detention Tank Carr Brook Via Sws 0 0h -
United Utilities HUNTS BANK CSO River Irk 0 0h -
United Utilities Edward Street (Dunkinfield) CSO River Tame Via Sws 0 0h -
United Utilities Broomstair Road CSO River Tame 0 0h -
United Utilities DUKINFIELD WwTW River Tame 0 0h -
United Utilities Turner Lane/Alexandra Road CSO River Tame 0 0h -
United Utilities Medlock Sports Centre CSO Lumb Brook Via Surface Wtr Sew 0 0h -
United Utilities ASHTON OLD ROAD / MANSHAW STREET CSO Moss Brook 0 0h -
United Utilities Argyll Street CSO Cock Brook 0 0h -
United Utilities LOWER WHARF STREET CSO River Tame 0 0h -
United Utilities Wharf Street CSO River Mersey 0 0h -
United Utilities HARTSHEAD CLOSE / MANSHAW ROAD CSO Culverted Section Moss Brook 0 0h -
United Utilities Dukinfield Outfall Sewer CSO River Tame 0 0h -
United Utilities HARTSHEAD CLOSE / MANSHAW ROAD CSO Culverted Section Moss Brook 0 0h -

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.